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5072581 = 23243223
BaseRepresentation
bin10011010110011011000101
3100112201021101
4103112123011
52244310311
6300420101
761054603
oct23263305
910481241
105072581
112955118
121847631
131087b37
14960873
156a2ec1
hex4d66c5

5072581 has 12 divisors (see below), whose sum is σ = 5450368. Its totient is φ = 4717944.

The previous prime is 5072539. The next prime is 5072603. The reversal of 5072581 is 1852705.

It is not a de Polignac number, because 5072581 - 215 = 5039813 is a prime.

It is a super-2 number, since 2×50725812 = 51462156003122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

5072581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22636 + ... + 22858.

Almost surely, 25072581 is an apocalyptic number.

It is an amenable number.

5072581 is a deficient number, since it is larger than the sum of its proper divisors (377787).

5072581 is a wasteful number, since it uses less digits than its factorization.

5072581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 5072581 is about 2252.2391080878. The cubic root of 5072581 is about 171.8210347823.

The spelling of 5072581 in words is "five million, seventy-two thousand, five hundred eighty-one".

Divisors: 1 23 43 223 529 989 5129 9589 22747 117967 220547 5072581